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Add Expr::DynamicConstant.

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This commit is contained in:
Stephen Chung
2020-11-14 19:04:49 +08:00
parent c104afbdce
commit 28de155f08
3 changed files with 33 additions and 2 deletions
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12
src/ast.rs
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@@ -860,6 +860,8 @@ pub struct FnCallExpr {
/// This type is volatile and may change.
#[derive(Debug, Clone)]
pub enum Expr {
/// Dynamic constant.
DynamicConstant(Box<Dynamic>, Position),
/// Integer constant.
IntegerConstant(INT, Position),
/// Floating-point constant.
@@ -929,6 +931,7 @@ impl Expr {
Some(match self {
Self::Expr(x) => return x.get_type_id(),
Self::DynamicConstant(x, _) => x.type_id(),
Self::IntegerConstant(_, _) => TypeId::of::<INT>(),
#[cfg(not(feature = "no_float"))]
Self::FloatConstant(_, _) => TypeId::of::<FLOAT>(),
@@ -957,6 +960,7 @@ impl Expr {
Some(match self {
Self::Expr(x) => return x.get_constant_value(),
Self::DynamicConstant(x, _) => x.as_ref().clone(),
Self::IntegerConstant(x, _) => (*x).into(),
#[cfg(not(feature = "no_float"))]
Self::FloatConstant(x, _) => (*x).into(),
@@ -1004,6 +1008,7 @@ impl Expr {
#[cfg(not(feature = "no_float"))]
Self::FloatConstant(_, pos) => *pos,
Self::DynamicConstant(_, pos) => *pos,
Self::IntegerConstant(_, pos) => *pos,
Self::CharConstant(_, pos) => *pos,
Self::StringConstant(_, pos) => *pos,
@@ -1036,6 +1041,7 @@ impl Expr {
#[cfg(not(feature = "no_float"))]
Self::FloatConstant(_, pos) => *pos = new_pos,
Self::DynamicConstant(_, pos) => *pos = new_pos,
Self::IntegerConstant(_, pos) => *pos = new_pos,
Self::CharConstant(_, pos) => *pos = new_pos,
Self::StringConstant(_, pos) => *pos = new_pos,
@@ -1096,7 +1102,8 @@ impl Expr {
#[cfg(not(feature = "no_float"))]
Self::FloatConstant(_, _) => true,
Self::IntegerConstant(_, _)
Self::DynamicConstant(_, _)
| Self::IntegerConstant(_, _)
| Self::CharConstant(_, _)
| Self::StringConstant(_, _)
| Self::FnPointer(_, _)
@@ -1129,7 +1136,8 @@ impl Expr {
#[cfg(not(feature = "no_float"))]
Self::FloatConstant(_, _) => false,
Self::IntegerConstant(_, _)
Self::DynamicConstant(_, _)
| Self::IntegerConstant(_, _)
| Self::CharConstant(_, _)
| Self::FnPointer(_, _)
| Self::In(_, _)